Baltimore, MD 21230 ZIP Code Profile

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Baltimore, MD

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ZIP Code 21230: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Baltimore, MD 21230

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 1,486
  • Single Family Addresses: 13,499
  • Multi-Family Addresses: 2,795
  • County: Baltimore City County
  • Centroid: Latitude 39.271, Longitude -76.627
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes

Neighborhood Data

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21230 ZIP Code Map

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Baltimore, MD 21230 Data & Demographics (As of July 1, 2017)


Total Population 34,531
Population in Households 34,338
Population in Familes 20,560
Population in Group Qrtrs 193
Population Density1 5,572
Diversity Index2 56


Total Households 15,589
Average Household Size 2.2
Family Households 7,113
Average Family Size 3


Total Housing Units 18,403 (100%)
Owner Occupied HU 8,190 (44.5%)
Renter Occupied HU 7,399 (40.2%)
Vacant Housing Units 2,814 (15.3%)
Median Home Value $237,198
Average Home Value $278,828


Median Household Income $62,336
Average Household Income $90,613
Per Capita Income $41,111
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.42% 0.18%
Households 0.57% 0.24%
Families 0.33% 0.08%
Median Household Income   2.66%
Per Capita Income   2.99%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Baltimore, MD 21230 - Peer Comparisons by Rank and Percentile

The table below compares 21230 to the other 456 ZIP Codes in Maryland by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 60 87th
Population Density1 # 36 92nd
Diversity Index2 # 118 74th
Median Household Income # 310 32nd
Per Capita Income # 168 63rd

Additional comparisons and rankings can be made with a VERY EASY TO USE Maryland Census Data Comparison Tool.

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